标签：T8 LED light tubes

t8 led light tubes problems

As the price of LED Lights compared to traditional light sources is a great disadvantage, how quickly the advantages of the LED really play out has become practitioners must face technical problems. To really carve out a new semiconductor lighting era, efforts to overcome technical problems but also from the following aspects:

1. to improve the LED (t8 led light tubes) luminous efficiency problems.
The main method of the LED luminous efficiency improving is to improve the structure and manufacturing process of the semiconductor light-emitting material and the LED chip. Since this part of the work requires a strong theoretical basis and advanced semiconductor process equipment, is still relatively difficult to achieve 200 lumens / watt target road. Although the traditional CCFL lamp power consumption is a little higher,  but the luminous efficiency can reach 50-100 lm / W luminous efficiency white LED devices in the nascent only 20lm / W, which doomed is not suitable as an LCD display backlight LED at the beginning. However, white LED Lamps luminous efficiency of an annual increase rate of 60% increase, so far, the luminous efficiency of white LED devices breakthrough 50lm / W, began to reach the practical level.

2. to solve the life problems of high-power light fades.
As lighting, luminous flux of a single LED (t8 led light tubes) output must be large enough to want to increase the flux LED, you must first inject a sufficient electric power. But the temperature rise of the LED chip can not be too high, otherwise the properties, especially the service life will be greatly affected. Clearly, the design of a larger input power LED components and lighting, in addition to the required larger chip, but also must have good thermal structure.

3. reasonable lighting structure design challenges
LED lighting by a number of LED tubes, the discrete nature of its parameters, also a technical issue. In addition to the pre-selection, classification, and try to ensure consistency, we must also design of the lamp structure (including the LED arrangement and location of the layout) and on an appropriate driver circuit, to prevent the occasional energy concentrated and burned part of the LED.

 

Shape designs for T8 LED light tubes

T8 is a code represents a type of tubes with diameters of one inch. T8 LED light tubes are mostly used LED tubes at present. Although the light efficiency of LED light sources is much higher than before, there are still some difficulties in replacing traditional fluorescent tube directly by LED tubes. In accordance with lighting standard of fluorescent tube, a 36W traditional tube should at least have a luminous flux of 2400lm. At present, among T8 LED light tubes, the highest luminous flux is around 2200lm (with a power consumption of 21W). However, cooling system of this kind of tubes cannot be contained within semi-circular pipe but trapezoidal pipe which provides larger spaces. In today’s manufacturing technology, it is impossible to create a T8 LED tube with trapezoidal-shaped cooling components. Cooling system will be the bottleneck for high power T8 LED tubes. According to present lighting efficiency of LED lights, T8 LED light tubes with a luminous flux more than 2000lm will suffer cooling problems. This type of lights cannot work for a long time and more prone to failure. Commonly used T8 LED tubes have a luminous flux of 1300lm-1500lm. This type of LED tubes cannot be used to replace traditional fluorescent tubes. This is a main reason why LED tubes are hardly to be accepted by customers. Many buyers complained that their rooms looked much dimmer than before.

 

T8 is a code represents a type of tubes with diameters of one inch. T8 LED light tubes are mostly used LED tubes at present.

 

In addition, LED tubes tend to follow the step of fluorescent tubes: becomes more and more thin. T5 LED tubes started to emerge in lighting market in few past years. However, this kind of herd behavior is totally wrong. It is an inevitable trend for fluorescent tubes, since a thinner tube can dramatically improve the lighting efficiency of a fluorescent tube. But situations are totally different for LED tubes. The thinner the tube, the harder for the heat dissipation. Meanwhile, spot phenomenon is inevitable if light sources are too closed to the cover, which will reduce light transmission ability of the cover, and consequently the high lighting efficiency of LED lights.

 

Designs of T8 LED light tubes should not be restricted by traditional ideas. Normally, places in which tubes are installed have larger space. It is uselessly to use thin LED tubes, just for a beautiful view? It is unnecessary. Our design object is to satisfy customers’ brightness requirements together with suitable cooling systems.